BI-759
Factors affecting photosynthesis
Biology · Secondary 3 · Hard · Factors affecting photosynthesis
A student shines light of increasing intensity on a water plant and measures the rate of photosynthesis by counting bubbles released per minute. The rate increases at first but then remains constant even when light intensity is further increased. Which conclusion is most appropriate?
- Light intensity is no longer the limiting factor at high intensities.
- Photosynthesis stops completely at high light intensities.
- Chlorophyll is destroyed at high light intensities.
- Carbon dioxide is not needed once light intensity is high.
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